Diagnostic information
2-49
4024-110
287.03 Sensor (upper media exit) on jam C
Step
Check
Yes
No
1
Check the media path.
1. Open the finisher front door assembly of the
finisher.
2. Remove the top cover and left upper cover.
3. Open the entrance pinch guide assembly upward.
4. Check four media entrance pinch guide pinch rolls
of the entrance pinch guide assembly and media
entrance roll assembly by turning them with your
fingers.
Are the media entrance pinch guide pinch rolls
installed correctly and do they rotate smoothly?
Go to step 2.
Clean or replace
the appropriate
roller, and clean
the media path.
2
Are the four media entrance pinch guide pinch rolls of
the entrance pinch guide assembly and media
entrance roll assembly free of damage?
Go to step 3.
Clean or replace
the appropriate
roller and clean
the media path.
3
Check the media path.
1. Open the upper pinch guide assembly to the right.
2. Check these items by turning them with your
fingers.
Are the four upper pinch guide pinch rolls of the upper
pinch guide assembly and two upper media transport
roll assemblies installed correctly, meaning do they
rotate smoothly?
Go to step 4.
Clean or replace
the appropriate
roller and clean
the media path.
4
Are the four upper pinch guide pinch rolls of the upper
pinch guide assembly and two upper media transport
roll assemblies free of damage?
Go to step 5.
Clean or replace
the appropriate
roller and clean
the media path.
5
Check the sensor (upper media exit) for correct
operation.
Perform the sensor (upper media exit) test.
1. Enter Diagnostics mode.
2. Select FINISHER TESTS.
3. Select Sensor Tests.
4. Select Media Path1.
5. Select Upper media exit.
Does the display on the operator panel change every
time the actuator of the sensor (upper media exit) is
operated?
Go to step 7.
Go to step 6.
6
Check the sensor (upper media exit) and main sensor
cable assembly connections
Is the above sensor connected properly?
Replace the
sensor (upper
media exit).
“Sensor (upper
media exit)
removal” on
page 4-104
.
Replace the
connection.
7
Check the drive motor (buffer/transport) by opening the
finisher front door assembly and then closing it.
Does the drive motor (buffer/transport) rotate properly?
Go to step 9.
Go to step 8.
Summary of Contents for W850dn
Page 8: ...viii Finisher Service Manual 4024 110 ...
Page 12: ...xii Finisher Service Manual 4024 110 ...
Page 22: ...1 6 Finisher Service Manual 4024 110 ...
Page 155: ...Repair information 4 3 4024 110 5 Remove the bridge unit assembly B from the printer B ...
Page 240: ...4 88 Finisher Service Manual 4024 110 25 Remove the main paddle shaft assembly Rear J F K L ...
Page 272: ...4 120 Finisher Service Manual 4024 110 ...
Page 282: ...5 10 Finisher Service Manual 4024 110 ...
Page 284: ...6 2 Finisher Service Manual 4024 110 ...
Page 290: ...7 6 Finisher Service Manual 4024 110 Assembly 4 Covers 3 7 5 9 2 10 6 4 8 1 ...
Page 292: ...7 8 Finisher Service Manual 4024 110 Assembly 5 Covers and front door 3 7 5 2 6 4 1 ...
Page 294: ...7 10 Finisher Service Manual 4024 110 Assembly 6 Stacker bin lift 5 4 6 3 1 2 8 2 3 3 3 1 7 7 ...
Page 298: ...7 14 Finisher Service Manual 4024 110 Assembly 8 Stapler 3 7 5 2 6 4 8 1 ...
Page 300: ...7 16 Finisher Service Manual 4024 110 Assembly 9 Media eject 8 4 9 6 2 7 5 1 3 11 2 3 6 5 10 ...
Page 310: ...7 26 Finisher Service Manual 4024 110 Assembly 14 Electronics 3 5 2 6 4 1 ...
Page 312: ...7 28 Finisher Service Manual 4024 110 Assembly 15 Cables 1 3 7 5 2 6 4 1 ...
Page 316: ...7 32 Finisher Service Manual 4024 110 ...
Page 322: ...I 6 Finisher Service Manual 4024 110 ...